# Календарь прививок и развития vs Соня

The clearest difference is review sentiment: Календарь прививок и развития at 75% against Соня's 20%. Календарь прививок и развития also leads on rating (4.1 vs 1.0) and monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Календарь прививок и развития holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Календарь прививок и развития has 76 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of Календарь прививок и развития's written reviews are positive against 20% of Соня's.

Календарь прививок и развития ships an update every 2 days, Соня every 3 days. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Календарь прививок и развития | Соня |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (76 ratings)](https://appshunter.io/ios/app/id6473169862/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/id6789162985/reviews) |
| Number of ratings | **76** | 1 |
| Positive reviews | **75.2% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 64 MB | 13 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Dmitrii Chetovanov](https://appshunter.io/developer/1718524648) | [I B Marketing LTDA](https://appshunter.io/developer/6784353392) |

## What reviewers say

### Календарь прививок и развития

[App page](https://appshunter.io/ios/app/id6473169862)

This app helps mothers track their baby's development and growth spurts with expert advice and personalized recommendations. It offers a comprehensive suite of tools to make childcare easier and more enjoyable, all for free.

**Highlights:** Baby development trackers, Growth spurt tracking, Expert articles on parenting, Personalized recommendations, Childcare convenience tools

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Very user-friendly interface
- 🌟 Excellent for tracking baby's development
- 💡 Comprehensive information and articles
- 💬 Great community chat support
- 🚀 Efficient tracking of sleep and feeding

**What reviewers complain about**

- 🐛 Bugs and glitches reported
- ⚠️ Frequent app updates can be annoying
- ❌ Some updates negatively impact functionality
- 🚫 Issues with app login/access
- 📉 Data loss due to account issues

**Reported bugs**

- App crashes and logs out users
- Data loss after logging out
- Incorrect time tracking for bottle feeding and sleep
- Buttons not responding or not saving information
- App not launching or login errors

**Requested features**

- Widget on the lock screen
- More space for comments in 'complementary feeding'
- Widget for baby's awake time on the main screen
- Manual entry for walks
- Widget for iOS main screen


### Соня

[App page](https://appshunter.io/ios/app/id6789162985)

This AI-powered sleep assistant helps parents of infants and toddlers track sleep patterns and receive personalized guidance. It analyzes your child's individual sleep schedule to suggest optimal times for naps and bedtime, adapting to disruptions like illness or travel.

**Highlights:** 24/7 AI sleep coaching, Personalized wake windows and sleep times, Sleep disruption tracking, One-tap sleep tracking, Mood tracking for sleep accuracy, Gentle, science-based sleep recommendations

**In-app purchases:** none


## Frequently asked questions

### Is Календарь прививок и развития free?

Календарь прививок и развития is free to download, with no in-app purchases.

### Is Соня free?

Соня is free to download, with no in-app purchases.

### Which has better reviews, Календарь прививок и развития or Соня?

Календарь прививок и развития is rated higher. Календарь прививок и развития averages 4.1 out of 5 from 76 ratings, while Соня averages 1.0 from 1 ratings.

### Do Календарь прививок и развития or Соня have ads?

Neither Календарь прививок и развития nor Соня shows ads.

### Which is updated more often, Календарь прививок и развития or Соня?

Календарь прививок и развития ships an update every 2 days, and Соня every 3 days. Most recently, Календарь прививок и развития was updated on October 19, 2026 and Соня on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*